713 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Living green: Conference proceedings of the living green scientific conference
No full textPresentaties van Livinggreen Scientific Conference: Stimulating energy efficiency in households - Comparison of the Livinggreen.eu methods to theory – Daphne Geelen Engaging households in sustainable renovation – Exploration of a complementary approach - Meijer, S.A., Geelen, D.V., Franken, V., Kersten, W.C., Crul. M.R.M From community resilience towards urban resilience: exploring the grassroot initiatives’ role in cities - Meijer, S.A., van Timmeren, A., Crul, M.R.M., Brezet, H.C. Sense of history: capturing and utilizing immaterial values for sustainable heritage protection - Franken, V., Meijer, S.A.Design EngineeringIndustrial Design Engineerin
The New Grand Balloon
No full textArticle about the ascent of Charles Green's balloon on September 23, 1836 from Vauxhall Gardens. Includes an account written by one of the passengers and an account written by Green. An accompanying illustration shows the balloon in the air with the ten passengers and spectators watching from a tower window.For more information about this item, visit https://archivesspace.mit.edu/repositories/2/digital_objects/74
The New Grand Balloon
No full textArticle published in the Weekly Chronicle about the ascent of Charles Green's balloon on September 23, 1836 from Vauxhall Gardens. From an account written by one of the passengers and an account written by Green. An accompanying illustration shows the balloon in the air with the ten passengers and spectators watching from a tower window.For more information about this item, visit https://archivesspace.mit.edu/repositories/2/digital_objects/68
Mayor W.C. Donahue
No full textPhotograph - A member of the Order of the Royal Purple presents a cheque to Mayor William Clifford Donahue for the skating rink fund. Athabasca, Alberta. April 15, 196
The Mosaical account of creation from a strictly scientific standpoint.
No full textWelles, W.C., ex. cl. of 1860.Cover-title.Mode of access: Internet.Copy 1 unbound
Modelonderzoek "Dikke Kop", golfonderzoek haven "Ras Lanuf"
No full textHet is bekend dat de toepassing van een dikke kop aan een golfbreker met verticale wanden invloed heeft op de golfhoogteverdeling achter de golfbreker. Dit onderzoek is verricht om een methode te vinden om deze invloed te bepalen en tevens te verklaren. Nadat dit vooronderzoek is afgerond is er begonnen met een zo economisch mogelijk ontwerp van de haven van Ras Lanuf.Hydraulic EngineeringCivil Engineering and Geoscience
Energy matching: Key towards the design of sustainable photovoltaic powered products
No full textThe starting point of this dissertation is the observation that today a vast amount of 'PV powered' products are already on the market. However, in these PV powered products quite often the choice of PV cells seems random and PV cells function mostly as add-on units to give the product a 'green' energy image. Because of this 'add-on' approach, the PV cells remain foreign bodies which are not well-integrated into the total product design. As a result in today's PV powered products often a sub-optimal matching between the PV cell characteristics, energy storage and the product user contexts. Therefore, the keyword to obtain a mature and sustainably designed PV powered product will be matching. As a result the research question is formulated as: What systematic matching can be achieved between the elements and interfaces of the energy chain of photovoltaic powered mobile/wireless products? The emphasis of this dissertation will be on the optimal matching in the energy chain of PV powered products. For this purpose, an Energy Matching Model of the energy chain is developed. This dissertation will present how, why and under what circumstances a novel Energy Matching Model and associated Figure of Matching algorithm can support industrial designers in developing sustainable photovoltaic powered products. This PhD research project is executed within the framework of the SYN-Energy program which explores the feasibility of a transition towards the use of photovoltaic (PV) cells in consumer and professional products. This program is a part of the 'Energy Research Stimulation Program' of the Netherlands Organisation for Scientific Research (NWO).Industrial Design Engineerin
Hydrodynamic forces and ship motions induced by surges in a navigation lock
No full textThis thesis treats the fluid and ship motion in a navigation lock and their mutual interaction as caused by surges, which occur in the chamber during filling or emptying. The other phenomena, which possibly play a role during these processes are ignored. The considerations of this treatise hold good for one ship in the chamber of the navigation lock, which is moored off such, that its displacement in the horizontal plane is negligible. The first simplification is less essential; with regard to the second simplification the theory presented can be extended relatively simply for longitudinal displacement of the ship. Furthermore no attention is devoted to various filling and emptying systems and their possible consequences for the theory; at any instant a practically homogeneous horizontal velocity distribution is assumed at the doors. On the basis of the results obtained in the chapters 6 and 7, it can be concluded, that for the higher frequencies, which can occur in a navigation lock, the theory derived in chapter 3 means an improvement with respect to the approach now in use. Moreover using the results of chapter 7 a reasonable approximation to the cross-forces can be found. The harmonic solutions, given ~n the chapters 6 and 7, cannot be used for the computation of a concrete case. This is caused by the quasilinear character of the various equations due to the continuously changing water level in a ship lock. Therefore, in chapter 8 the integration of the equations is carried out in a numerical way. In the integration it is assumed, that the velocities remain small, so that some quadratic terms in the equations of motion can be neglected. The computational scheme is chosen such, that the detrimental effect of the truncation error is eliminated; its stability is investigated in appendix c. The program is tested by means of the results of an experiment with a transient with arbitrary shape. Finally the program is used for a specific case. In this case the cross-forces as caused by the translatory waves proved to be an order of magnitude smaller than the longitudinal force.Hydraulic EngineeringCivil Engineering and Geoscience
High-temperature CVD silicon on ceramic substrates for solar cell applications
No full textElectrical Engineering, Mathematics and Computer Scienc
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